Listed below are links to other web sites that contain information related to numbering.

PLEASE NOTE that these links are off site and will launch a new browser window.
 

Alliance for Telecommunications Industry Solutions (ATIS)

ATIS Home

Federal Communications Commission (FCC)

FCC Home

Industry Numbering Committee (INC)

INC Home INC Documents/Guidelines

Local Number Portability Administrator Working Group (LNPA-WG)

LNPA-WG Home

MBI Administrator

MBI Home Page

National Routing Number Administrator

RNA Home

North American Numbering Plan Administrator (NANPA)

NANPA Home

North American Numbering Council (NANC)

NANC Chair NANC Home

Number Portability Administrator Center (NPAC)

NPAC Home